Canthophorus dubius ( Scopoli, 1763 )

Gapon, Dmitry A., 2018, Morphology of male and female terminalia and taxonomic revision of the burrower bugs genus Canthophorus (Heteroptera: Cydnidae), Annales de la Société entomologique de France (N. S.) 54 (3), pp. 183-228 : 13-15

Canthophorus dubius ( Scopoli, 1763)

( Figures 1 A, 1 B , 3 A –3 D , 4 A, 4 B , 6 A – 6 I , 7 A, 7 B , 8 H, 8 I , 9 A, 9 B , 12 A )

Cimex dubius Scopoli 1763: 121 [syntypes: Italy, Triest; lost].

Cimex albomarginatus Schrank 1776: 80 .

Cimex histriolus Goeze 1778: 276 .

Cimex viennensis Gmelin 1790: 2159 .

Cimex melanoleucos Gmelin 1790: 2161 .

Cimex albomarginellus Fabricius 1794: 123 .

Canthophorus (Canthophorus) dubius : Mulsant & Rey 1866: 63.

Description

Lateral margins of pronotum and corium with yellowish narrow stripe; anterior angles of ventrites and connexival laterotergites with yellowish spots. Metasternal evaporatorium with long and curved peritreme. Membrane brownish or whitish.

Pygophore slightly longer than wide; lateral walls very slightly concave in middle of length; dorsal infolding slightly shorter, without impression, dorsal wall slightly longer than in C. melanopterus .

Paramere ( Figure 3 A –3 D ). Hypophysis strongly curved dorsally, so that its apex is visible from outer view.

Aedeagus ( Figure 4 A, 4 B ). Ventral lobe of conjunctiva barely reaching apical margin of theca and narrowed before widened apex; latter with two small lateral denticles directed laterad and with two nariform impressions dorsal to them ( Figure 6 A, 6 C, 6 D, 6 F ) or rarely without denticles and impressions ( Figure 6 G, 6 I ); ventral surface of lobe slightly convex, without carina; in lateral view, lobe rather narrow ( Figure 6 B, 6 E, 6 H ). Apical lobes of conjunctiva short, directed ventroposteriad, lying completely in dorsoventral plane of apical half of conjunctiva and curved one towards other in middle. Vesica without lateral branch. Dorsolateral lobes of conjunctiva long, basally divided by impression, divergent in a V-shape, directed dorsolaterad, and curved anteriad at apices. Anterior wall of each dorsolateral lobe with area of weak sclerotisation before apex. Spicule broad at base, tapering to pointed apex, basally directed anteriad and dorsad, curved mediad before apex. Inner end of spicule basal plate with one short conical denticle directed mediad.

Gynatrium ( Figure 9 A ). Posterior pouches located behind posterior margin of gynatrial sac; line of posterior margin laterally curved posteriad and extending on dorsal walls of pouches ( Figure 12 A ). They are rather large, approximately as long as wide, with wide base and widely rounded posterior margin in dorsal view. Their walls rather soft, inner walls evenly convex, not sloped. Pouches subtransparent, without any sclerotisations inside. Anterior part of gynatrial sac very long and wide. Proximal part of spermathecal duct very short; median part elongated; distal part as long as half of median part or slightly shorter. Tubular part of spermathecal capsule approximately as long as transverse diameter of its spherical part and curved, but not gyrose ( Figure 9 B ). First rami ( Figure 8 H, 8 I ) rather broadly widened anteriorly, at anterior ends truncate at acute angle, rarely slightly widening and with rounded anterior end.

Figures

Figure 1. Hemelytral membranes in Canthophorus spp. A, C. dubius dubius (Scopoli, 1763), France: Roquefort-les-Pins; B, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; C, C. melanopterus melanopterus (Herrich-Schaeffer, 1835), Ukraine: Ascania Nova; D, C. melanopterus contrarius (Wagner, 1956), Cyprus: Château de Buffavento; E, C. impressus impressus (Horváth, 1880), Russia: Khodzhal-Makhi; F, C. impressus hajastanicus n. ssp., Georgia: gorge of Paravanichet Riv., paratype. Abdomens removed to show membrane colour in transparency.

Figure 3. Right parameres in Canthophorus and Adomerus spp. A, B, C. dubius dubius (Scopoli, 1763), France: Seine-et-Marne; C, D, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; E, C. melanopterus (Herrich-Schaeffer, 1835), Russia: Krasnaya Polyana; F, C. impressus impressus (Horváth, 1880), Ukraine: Demir-kapu; G, C. impressus hajastanicus n. ssp., Armenia: Gekhmakhan Mt., paratype; H, C. wagneri Asanova, 1964, Russia: Makhachkala; I, C. mixtus mixtus Asanova, 1964, Armenia: Kipchakh; J, C. mixtus mixtus Asanova, 1964, Armenia: Gyumri; K, C. mixtus hissaricus Asanova, 1964 n. stat., Tajikistan: urochishche Ruydasht, paratype; L, C. niveimarginatus Scott, 1874, Russia: Kyzyl; M, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek; N, O, A. aeneus (Walker, 1867) n. comb.; P, Q, A. maculipes (Mulsant & Rey, 1852) n. comb. Outer-ventral view (A, C, E, F–M), inner view (N, P), and dorsal view (B, D, O, Q). Scale bar: 0.25 mm.

Figure 4. Aedeagi and vesici in Canthophorus spp. A, B, C. dubius dubius (Scopoli, 1763), Russia: Krasnaya Polyana, paratype; C–G, C. melanopterus melanopterus (Herrich-Schaeffer, 1835), Russia: Pukhlyakovskiy (C, D), Ukraine: Opolznevoe (E), Greece: Lake Kremasta (F), Tunisia: Sidi el Hani (G); H, C. melanopterus contrarius (Wagner, 1956). Aedeagus in lateral view (A) and in dorsal view (B, C); vesica in dorsoposterior view (D) and in lateral view (E–H). a.l – apical lobes of conjunctiva; dl.l – dorsolateral lobes of conjunctiva; l.b – lateral branch of vesica; sp – spicule of dorsolateral lobes; v.l – ventral lobe of conjunctiva; vs – vesica. Scale bares: 0.25 mm.

Figure 6. Ventral lobes of conjunctiva in Canthophorus spp. A–C, C. dubius dubius (Scopoli, 1763), France: Forêt des Morières; D–I, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype (D–F), Russia: Tuapse (G–I); J–M, C. melanopterus (Herrich- Schaeffer, 1835), Ukraine: Yalta (J, K), Armenia: Tigranashen (L, M); N, O, C. impressus (Horváth, 1880), Ukraine: Velikiy Anadol; P, Q, C. wagneri wagneri Asanova, 1964, Russia: Akhty; R, S, C. wagneri hyrcanicus n. ssp., Turkmenistan: gorge Khozly; T, U, C. mixtus Asanova, 1964, Kazakhstan: Dzhanibek; V, W, C. niveimarginatus Scott, 1874, Russia: Kyzyl; X, Y, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek. Ventral view (A, D, G, J, L, N, P, R, T, V, X), lateral view (B, E, H, K, M, O, Q, S, U, W, Y), and anterior view (C, F, I). Scale bar: 0.25 mm.

Figure 7. Spicules of conjunctival dorsolateral lobes in Canthophorus spp.A, C. dubius dubius (Scopoli, 1763), France:Forêt des Morières; B, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; C, D, C. melanopterus melanopterus (Herrich-Schaeffer, 1835), Ukraine: Opolznevoe (C), Tunisia, Sidi el Hani (D); E, C. melanopterus contrarius (Wagner, 1956); F, C.melanopterus mariae n. ssp., Tajikistan:Kondara Gorge, paratype; G, C. impressus impressus (Horváth, 1880), Ukraine:Demir-kapu; H, C. impressus hajastanicus n. ssp., Armenia:Gekhmakhan Mt., paratype; I, C. wagneri wagneri Asanova, 1964, Russia: Il’ Mt. SE Vladikavkaz; J, C. wagneri hyrcanicus n. ssp., Turkmenistan: gorge Khozly, paratype; K–Q, C. mixtus mixtus Asanova, 1964, Kazakhstan: Chagan-Aba (K), Kazakhstan: Yanvartsevo (L); Armenia: Kipchakh (M), Kazakhstan:Khanskaya stavka(N),Tajikistan:KhozretishiRange[Gurjeva] (O,P), Kazakhstan:Trans-Ili Alatau,gorge Levyy Talgar(Q);R,S, C. mixtus hissaricus Asanova, 1964 n. stat., Tajikistan: urochishche Ruydasht, paratype (R), Tajikistan: Khozretishi Range, 75 km NE Muminabad (S); T, U, C. niveimarginatus Scott, 1874, Russia: Kyzyl (T), Mongolia: Stariy Tsakhir (U); V, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek. Scale bar: 0.25 mm.

Figure 8. Female terminalia in Canthophorus spp. A–G, C. melanopterus (Herrich-Schaeffer, 1835), Ukraine: Alma Riv. (A), Azerbaijan: Ganja (B), Ukraine: Kamenets-Podol’skiy (C), Armenia: Dzhervezh (D), Ukraine: Khadzhibeyskiy liman (E), Morocco: Aourir (F); Egypt: “Aegipt.” (G); H, C. dubius dubius (Scopoli, 1763), France: Forêt des Morières; I, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; J, K, C. impressus impressus (Horváth, 1880), Ukraine: “yayla Besh-tekme” (J), Russia: Beshtau Mt. (K); L, C. impressus hajastanicus n. ssp., Armenia: Gekhmakhan Mt., paratype; M, N, C. wagneri wagneri Asanova, 1964, Russia: Anapa (M), Armenia: Sevan Lake (N); O–S, C. mixtus mixtus Asanova, 1964, Ukraine: Kremenets Mt. nr Izyum (O), Armenia: Spitak (P), Ukraine: Aleshki, paratype (Q), Ukraine: Nyrkovo – Vyemka, paratype (R), Azerbaijan: Kars (S); T, U, C. mixtus hissaricus Asanova, 1964; n. stat., Tajikistan: urochishche Ruydasht [paratypes]; V, W, C. niveimarginatus Scott, 1874; Russia: Kosh-Agach (V), Russia: Kamen’-Rybolov (W); X, Y, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek (X), Kyrgyzstan: Berk-Suu Riv (Y). External terminalia (genital plates) and vestibulum of gynatrium, ventral view (A); gynatrial sac, dorsal view (B); shape of right first ramus (C–Y). a.g – anterior part of gynatrial sac; d.d – distal part of spermathecal duct; f.r – first rami; g.c – gynatrial cone; gn – gonangulum; gp.I – gonapophyses I; gp.II – gonapophyses II; gx.II – gonocoxites II; m.d – median part of spermathecal duct; p.d – proximal part of spermathecal duct; p.g – posterior part of gynatrial sac; p.m – posterior margin of gynatrial sac; p.p – posterior pouches of gynatrial sac; r.s – ring sclerites; tr – triangulum. Scale bars: 0.25 mm.

Figure 9. Female terminalia in Canthophorus spp. A, B, C. dubius (Scopoli, 1763), Russia: Krasnaya Polyana (A), Italy: Lecco (B); C, C. melanopterus melanopterus (Herrich- Schaeffer, 1835), Azerbaijan: Ganja; D, C. melanopterus mariae n. ssp., Tajikistan: Kondara Gorge, paratype. Gynatrial sac, dorsal view (B), capsule of spermatheca (C, D). Scale bars: 0.25 mm.

Figure 12. Posterior pouches of gynatrial sac in Canthophorus spp., posterio-inner view. A, C. dubius (Scopoli, 1763), Italy: Lecco; B, C. melanopterus (Herrich-Schaeffer, 1835), Ukraine: Alma Riv.; C, C. impressus impressus (Horváth, 1880), Ukraine: “yayla Besh-tekme”; D, C. impressus hajastanicus n. ssp., Armenia: Gekhmakhan Mt., paratype; E, C. wagneri Asanova, 1964, Russia: Anapa (some diagnostic characters is indicated by arrows); F, C. mixtus Asanova, 1964, Ukraine: Aleshki, paratype (pouch is shown straightened). Scale bar: 0.25 mm.